<span>Answer: Cellular differentiation is responsible for one daughter cell becoming a sieve tube whereas the other becomes a companion cell. Cell differentiation occurs as different genes are switched on and off.
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Answer:
The answer is C basal area
Answer:
The enzyme you will be studying in this experiment is lactase, and the reaction it catalyzes is the hydrolysis of the disaccharide lactose into the monosaccharides galactose and glucose.
Explanation:
If it killed the top level of an ecosystem it would damage the whole ecosystem because it's connected. An organism depends on that top organism which would mean that is that organism dies it would affect the organism that depends on it.